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Manpages TANHSection: Linux Programmer's Manual (3 )Updated: 1993-06-13 Index Return to Main Contents NAMEtanh - hyperbolic tangent functionSYNOPSIS#include <math.h> double tanh(double x); DESCRIPTIONThe tanh() function returns the hyperbolic tangent of x, which is defined mathematically as sinh(x) / cosh(x).CONFORMING TOSVID 3, POSIX, BSD 4.3, ISO 9899SEE ALSOacosh(3), asinh(3), atanh(3), cosh(3), sinh(3)
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